mediaview: Register ARC documents provider file system.

chrome/browser/chromeos/BUILD.gn

Index: chrome/browser/chromeos/BUILD.gn
diff --git a/chrome/browser/chromeos/BUILD.gn b/chrome/browser/chromeos/BUILD.gn
index 8f6d8e423df69c892cbd09a2c3cae69d5b5f243b..346eb48fe4842489fc11b4f83991877791770954 100644
--- a/chrome/browser/chromeos/BUILD.gn
+++ b/chrome/browser/chromeos/BUILD.gn
@@ -241,8 +241,6 @@ source_set("chromeos") {
     "arc/fileapi/arc_content_file_system_backend_delegate.h",
     "arc/fileapi/arc_content_file_system_file_stream_reader.cc",
     "arc/fileapi/arc_content_file_system_file_stream_reader.h",
-    "arc/fileapi/arc_content_file_system_service.cc",
-    "arc/fileapi/arc_content_file_system_service.h",
     "arc/fileapi/arc_content_file_system_url_util.cc",
     "arc/fileapi/arc_content_file_system_url_util.h",
     "arc/fileapi/arc_documents_provider_async_file_util.cc",
@@ -259,6 +257,8 @@ source_set("chromeos") {
     "arc/fileapi/arc_documents_provider_util.h",
     "arc/fileapi/arc_file_system_instance_util.cc",
     "arc/fileapi/arc_file_system_instance_util.h",
+    "arc/fileapi/arc_file_system_service.cc",
+    "arc/fileapi/arc_file_system_service.h",
     "arc/intent_helper/arc_external_protocol_dialog.cc",
     "arc/intent_helper/arc_external_protocol_dialog.h",
     "arc/intent_helper/arc_navigation_throttle.cc",